Mining disturbance effect and mining arrangements analysis of near-fault mining in high tectonic stress region

摘要：

Dynamic disasters can be easily induced by mining disturbance in the tectonic stress concentration region near the fault. Based on the fault Coulomb failure stress criterion, a dynamic Coulomb failure stress increment model is established for quantitative assessment of mining disturbance effect. Furthermore, the disturbance effects of two possible working face arrangements near the same fault are compared by using the proposed dynamic Coulomb failure stress model and numerical method. The results show that Coulomb failure stress increment, as a comprehensive mechanical parameter, can well reflect the mining disturbance to the stress environment of fault. The disturbance effect on the fault in the case of the working face perpendicular to fault is much less than that of the working face parallel to fault, therefore the dynamic disaster risk induced by the former arrangement is much lower.

关键词： Near-fault mining mining disturbance effect Coulomb failure stress increment mining arrangement dynamic disaster risk

作者: Ji HG Ma HS Wang JA Zhang YH Cao H

作者单位: State Key Lab of High-efficient Metal Mining & Safety, University of Science & Technology Beijing, Beijing 100083, China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 222-229

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）